Countdown Timer
Set a timer and get alerted when time is up
Set Timer Duration
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Quick Start
Countdown Timer
Set a timer and get alerted when time is up
Features
- Set custom countdowns with hours, minutes, and seconds
- Quick preset buttons for common durations (1, 5, 10, 15, 30 min, 1 hr)
- Visual progress ring and linear progress bar
- Audio alert when the timer reaches zero
- Pause, resume, and reset controls
- 100% private — runs entirely in your browser
How to use
- Enter hours, minutes, and seconds, or click a quick preset button.
- Press Start to begin the countdown.
- Use Pause/Resume to control the timer, or Reset to start over.
- When time is up, an audio alert will sound. Click Dismiss to stop it.
Tips & Best Practices
- Use the quick preset buttons to start common timers with one click.
- The colons blink while the timer is running to show it is active.
- You can add extra time without stopping the countdown.
- The progress ring provides a visual indication of remaining time.
- All processing happens in your browser — no data sent to servers.
FAQ
Does the timer work in the background?
Yes, the countdown continues running even if you switch to another tab. However, the audio alert requires the tab to be active in some browsers.
Can I add extra time while the timer is running?
Yes, click the '+1 min' button to add 60 seconds to the running or paused timer.
Is there an audio alert?
Yes, the timer plays a series of beep tones using the Web Audio API when the countdown reaches zero. No external audio files are needed.
Is this tool free to use?
Yes, completely free with no registration, no limits, and no hidden costs.
Does it work offline?
Once loaded, the tool works entirely offline. All processing is done client-side.